diff options
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/ohci.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index c788dbdaf3b..834e71d2324 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -1777,11 +1777,35 @@ static int get_self_id_pos(struct fw_ohci *ohci, u32 self_id, return i; } +static int initiated_reset(struct fw_ohci *ohci) +{ + int reg; + int ret = 0; + + mutex_lock(&ohci->phy_reg_mutex); + reg = write_phy_reg(ohci, 7, 0xe0); /* Select page 7 */ + if (reg >= 0) { + reg = read_phy_reg(ohci, 8); + reg |= 0x40; + reg = write_phy_reg(ohci, 8, reg); /* set PMODE bit */ + if (reg >= 0) { + reg = read_phy_reg(ohci, 12); /* read register 12 */ + if (reg >= 0) { + if ((reg & 0x08) == 0x08) { + /* bit 3 indicates "initiated reset" */ + ret = 0x2; + } + } + } + } + mutex_unlock(&ohci->phy_reg_mutex); + return ret; +} + /* * TI TSB82AA2B and TSB12LV26 do not receive the selfID of a locally * attached TSB41BA3D phy; see http://www.ti.com/litv/pdf/sllz059. * Construct the selfID from phy register contents. - * FIXME: How to determine the selfID.i flag? */ static int find_and_insert_self_id(struct fw_ohci *ohci, int self_id_count) { @@ -1814,6 +1838,8 @@ static int find_and_insert_self_id(struct fw_ohci *ohci, int self_id_count) self_id |= ((status & 0x3) << (6 - (i * 2))); } + self_id |= initiated_reset(ohci); + pos = get_self_id_pos(ohci, self_id, self_id_count); if (pos >= 0) { memmove(&(ohci->self_id_buffer[pos+1]), |